- Document-setting RC automotive reached 234.7mph in February utilizing drone-powered drivetrain
- Undertaking 250 redesign focuses on narrowing chassis and growing electrical energy
- Engineer goals to exceed present world file with upgraded motors and better voltage
Stephen Wallis, a part-time bike engineer from Rugby, UK, set a Guinness World Document in February 2026 when his distant management automotive reached 234.7mph, and he’s already engaged on a redesigned machine constructed to push past 250mph.
The record-setting automobile, often known as The Beast, measures 3ft 2in lengthy, about 1m, and took greater than a yr to design and construct utilizing 3D-printed parts and high-powered drone motors.
4 motors are bolted on to the wheels, which join straight to the chassis to scale back mechanical losses and maintain the drivetrain easy at very excessive speeds.
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A barely ridiculous aim: 250mph
Wallis stated his curiosity in radio-controlled automobiles stems from his childhood. “It goes again to after I was eight years previous and received my first radio managed automotive,” Wallis informed the BBC.
The ultimate recorded pace of The Beast positioned the small automobile forward of the highest pace of a manufacturing McLaren F1, providing a helpful comparability with a well known efficiency benchmark.
Reaching 240mph had been a non-public aim throughout the authentic challenge, though his consideration has now shifted to an much more demanding goal.
In a latest video replace, Wallis defined how he’s rebuilding the automotive to chase increased speeds and break his personal file.
“At this time, I will present you precisely how I am evolving my RC automotive to beat my Guinness World Document of 234.7 mph and chase a barely ridiculous aim: 250,” he stated.
The brand new construct, often known as Undertaking 250, retains the overall structure of The Beast whereas introducing a number of mechanical and electrical upgrades.
Decreasing general width is a key change, as narrower bodywork cuts drag and helps keep stability at increased speeds.
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Bigger 5215 motors are additionally being launched to ship extra torque and handle warmth extra successfully beneath heavy hundreds. Battery capability is growing as nicely, with a further two-cell unit elevating the system to a 20-cell, 84V setup.
“I’ve received concepts: make it narrower, match larger motors, and run extra voltage. Now, I would like to show these concepts into an actual design,” he stated.
Adjustments to wheel mounting and steering parts had been required to attain the narrower structure, together with revised adapters that place the wheel nearer to the motor face.
Weight steadiness is one other problem, as shifting batteries and electronics can change how the automotive behaves at excessive speeds.
“I have to design a automotive able to 250 mph and construct it in time for the subsequent speedrun season, which begins in 8 weeks,” he stated.
Prototype components have already been produced utilizing 3D printing to substantiate match and structure and the ultimate parts will probably be manufactured from aluminum and carbon fiber.
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